The day has come, MySQL 5.6 is now generally available (GA), ready for production use (at the time of writing the latest version number if 5.6.10). To download, go to www.mysql.com or go directly to the download page.
As part of MySQL Server Quality Assurance I have been "intimate" with parts of this release for a long time... it comes with many new great features, bug fixes and other improvements. While I won't claim it to be bug free (after all, no software is), I feel confident that it is a big step forward from earlier releases for the majority of use cases.
Give it a spin!